this is all depends on your budget.
Milk - will encourage breast feed (more nutrition and off course can save alot) otherwise, please consult your pedetrition.
Pampers - i will recomment Mamy Poko (not those standard yellow packages, is those normal blue packages), is little costly but is more comfy, can use it at night or out from house. Day time can use Drypers, but keep changing like 2-3 hours.
Stroller - for me, is a must, i dont encourage to carry baby when out from house, baby should learn to be independant, and make sure they sit comfy in their stroller. Brand can choose standard brand such as Sweeet Cherry, or can go baby stores to compare and again is about your budget.
all other baby stuff, please walk in to the baby stores, and you will know what to buy :)
P/S : get a anti colic milk bottle, it help alot. Also use baby used washing powder, so it wont cause baby skin sensitive. also use baby shampoo to protect baby skin.
Hope this help :)
If you still need help, pls watsapp me @ 0162091329